An air filter device with a convenient dismounting function

Abstract

The utility model discloses a kind of air filtering devices with convenient dismounting function, including frame body, net frame and filter paper core body.The frame body back is equipped with installation port for installing filter paper core body, and front surface is equipped with installation groove for separably installing net frame;Plastic filter screen is equipped in the net frame, and its front surface is equipped with handle block to facilitate dismounting;Frame body is equipped with multiple sets of limiting and supporting structure, including side limiting block, middle limiting block, top block and guard frame, and positioning is accurately, installation is firm is collectively ensured to each filter element.The utility model is quickly disassembled and assembled by modularization, effectively solve the problem that traditional air filtering device is inconvenient to maintain, cannot be layered cleaning, with the advantages of reasonable structure, convenient operation, good sealing, strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and in particular to an air filter device with an easy-to-disassemble function. Background Technology

[0002] Air filtration systems are an indispensable component of modern building ventilation systems, used to remove pollutants such as pollen, dust, PM2.5, bacteria, and odors that enter the building, thereby improving indoor air quality. Their importance is particularly pronounced in areas with severe air pollution or high population density.

[0003] Currently, most air filtration devices on the market adopt a fixed structure, with the filter element and frame often being an integrated design or fastened with screws. This type of structure reveals several obvious shortcomings in practical use. For example, Chinese patent application 201580045917.6 discloses a "uniformly expandable air filter," which connects a pleated filter medium through an expandable element, achieving a uniform transition of the filter medium from a collapsed state to an expanded state. While this improves filtration efficiency to some extent, it still has the following deficiencies: First, maintenance and replacement are extremely inconvenient. Most existing products require disassembling the entire device to clean or replace the filter, a cumbersome process that not only increases the user's workload but also easily damages the sealing structure during repeated disassembly and reassembly, reducing the equipment's airtightness and filtration efficiency, resulting in high long-term maintenance costs.

[0004] Secondly, the functions are relatively limited and cannot meet the needs of layered cleaning or targeted maintenance. For example, in different pollution environments, users may need to clean the pre-filter (such as a plastic filter for handling large particulate dust) or the high-efficiency filter (such as a paper filter for PM2.5 and microorganisms) separately. However, the existing structure usually fixes each filter layer in the same frame, does not support modular disassembly and assembly, resulting in low maintenance efficiency and an inability to flexibly adjust for different types of pollution.

[0005] Furthermore, traditional filtration devices have poor structural adaptability. Their frames often lack effective limiting and guiding structures, making them prone to misalignment during filter element installation and affecting the sealing effect. They also have difficulty in compatibility with filter materials of different thicknesses or types, limiting the product's applicability and installation reliability.

[0006] Therefore, there is an urgent need for a new type of air filtration device that can enable quick and independent disassembly and assembly of the filter, improve maintenance convenience, and enhance the adaptability of the structure to different filter media, so as to overcome the above-mentioned defects of the existing technology. Summary of the Invention

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an air filtration device with a reasonable structure, convenient disassembly, easy layered maintenance and reliable installation positioning, so as to solve the problems of difficult maintenance, single function and poor structural adaptability of existing filtration equipment.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an air filtration device with easy disassembly function, comprising a frame, wherein the back of the frame is provided with an installation port for installing a filter paper core; the front surface of the frame is provided with an installation groove for detachably installing a mesh frame; and a plastic filter screen is provided inside the mesh frame.

[0009] Furthermore, the front surface of the frame is also provided with a protective frame located behind the plastic filter screen to support the plastic filter screen.

[0010] Furthermore, the top surface of the frame is provided with at least two top blocks for limiting the position of the filter paper core.

[0011] Furthermore, the frame is provided with side limiting blocks on both sides, which extend to the front edge of the mounting groove and can restrict the lateral movement of the wire frame.

[0012] Furthermore, vertical blocks are provided on the front of both sides of the mesh frame, which can abut against the back of the side limiting blocks to further enhance the limiting effect on the mesh frame.

[0013] Furthermore, a middle limiting block is provided in the middle of the mounting groove, which extends to the lower edge of the middle of the plastic filter screen to limit the longitudinal displacement of the plastic filter screen.

[0014] Furthermore, the front surface of the mesh frame is provided with a handle block, which makes it easy for the user to apply force to disassemble the mesh frame.

[0015] Furthermore, the frame has an arc-shaped structure on both sides.

[0016] Furthermore, the two sides of the mesh frame are also arc-shaped, matching the shape of the frame sidewall.

[0017] The beneficial effects of this utility model are as follows: 1. This structure, through the cooperation of the detachable mesh frame and the mounting groove of the frame, enables quick and independent disassembly and assembly of the plastic filter screen, facilitating users to clean or replace the pre-filter screen separately, significantly improving maintenance efficiency. 2. This structure is equipped with multiple sets of limiting blocks and guards, forming a multi-layer limiting system, effectively ensuring the accuracy of the position and structural stability of the filter paper core and plastic filter screen after installation, improving sealing performance and filtration reliability. 3. The overall structure adopts a modular design, which can flexibly adapt to filter media of different thicknesses and types, enhancing product applicability. At the same time, the arc-shaped side design also helps to improve airflow and adapt to various installation environments. 4. This structure is simple and easy to operate, significantly reducing usage and maintenance costs while ensuring filtration effect, and has strong practicality and promotional value.

[0018] This utility model has an ingenious structural design that solves the problems of inconvenient disassembly, high maintenance costs, and limited functionality in the prior art. It is especially suitable for air purification applications that require frequent cleaning or filter replacement. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 A schematic diagram of its decomposed structure.

[0022] Figure 3 This is a schematic diagram of the structure in which the frame and the filter paper core are connected.

[0023] Figure 4 This is a schematic diagram of the frame structure.

[0024] Figure 5 This is a schematic diagram of the installation state structure of this utility model.

[0025] As shown in the attached diagram, the components are labeled as follows: frame 1, side limiting block 101, top block 102, guard frame 103, middle limiting block 104, mounting groove 105, mesh frame 2, plastic filter screen 201, vertical block 202, cloth pulling block 203, and filter paper core 3. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] like Figures 1 to 5 As shown, this embodiment provides an air filtration device with easy disassembly, which mainly includes a frame 1, a mesh frame 2, and a filter paper core 3.

[0028] The frame 1 is the main supporting structure of this device. It has an installation opening on its back for embedding and installing the filter paper core 3. The front surface of the frame 1 has a mounting groove 105 for detachably installing the mesh frame 2. A protective frame 103 is also fixed to the front surface of the frame 1, located inside the mounting groove 105, for supporting the plastic filter screen 201 from the back. Two top blocks 102 are provided on the top surface of the frame 1 to limit the filter paper core 3 from above, preventing it from loosening and falling off. Side limiting blocks 101 are provided on both sides of the frame 1, extending forward to the front edge of the mounting groove 105 to limit the lateral movement of the mesh frame 2. A central limiting block 104 is also provided in the middle of the mounting groove 105, extending upward to limit the position of the lower edge of the plastic filter screen 201. The sides of the frame 1 are designed with an arc shape, which enhances the structural aesthetics and facilitates adaptation to different installation positions and improves airflow organization.

[0029] The mesh frame 2 is detachably installed by engaging with the mounting groove 105 on the frame 1 through its edge. A plastic filter 201 is fixedly installed inside the mesh frame 2, primarily used to filter large particulate pollutants in the air, such as dust and pollen. Vertical blocks 202 are provided on the front sides of both sides of the mesh frame 2. When the mesh frame 2 is installed in place, these vertical blocks 202 tightly abut against the back of the side limiting blocks 101 on the frame 1, further restricting the forward and backward movement of the mesh frame 2 and enhancing the stability of the connection. A handle block 203 is also provided on the front surface of the mesh frame 2. Users can easily remove the mesh frame 2 from the frame 1 by applying force with the handle block 203, greatly facilitating the cleaning or replacement of the plastic filter 201. The sides of the mesh frame 2 are also correspondingly arc-shaped, fitting well with the arc-shaped sidewalls of the frame 1, ensuring structural harmony and airtightness. The filter paper core 3 is installed in the mounting port on the back of the frame 1, behind the plastic filter screen 201. It is mainly used to filter finer pollutants, such as PM2.5 and bacteria. It is limited by the top block 102, and installation and replacement can be performed from the rear of the frame.

[0030] The working principle and usage process of this utility model are as follows: When installation is required, firstly, the filter paper core 3 is inserted into the mounting port on the back of the frame 1, and the top block 102 is used to limit the frame 1 (the top block 102 rests against the inner wall of the air purifier). Then, the mesh frame 2 containing the plastic filter 201 is pushed into the frame 1 from its front, aligned with the mounting groove 105. During this process, the vertical blocks 202 on both sides of the mesh frame 2 will contact and limit the back of the side limiting blocks 101 of the frame 1, while the lower edge of the middle part of the mesh frame 2 will be constrained by the middle limiting block 104, and the plastic filter 201 on the back of the mesh frame 2 will be supported by the protective frame 103. The combined action of multiple limiting and supporting structures ensures the accuracy and firmness of the installation position of the mesh frame 2 and the filter paper core 3, guaranteeing the sealing of the filter surface and the filtration effect.

[0031] When the plastic filter screen 201 needs to be cleaned or replaced, the user only needs to grasp the handle block 203 on the screen frame 2 and apply force outward to easily pull the entire screen frame 2 out of the mounting slot 105 of the frame 1. Then the plastic filter screen 201 can be cleaned or replaced separately without disassembling the entire device or disturbing the filter paper core 3 at the rear. Similarly, when the filter paper core 3 needs to be replaced, it can be directly removed and replaced from the rear of the frame. The operations do not interfere with each other and are extremely convenient.

[0032] In summary, this utility model, through the combination of a detachable mesh frame design and a multi-layered limiting support structure, successfully achieves rapid and independent assembly and disassembly of the filter unit, solving the problems of inconvenient maintenance and limited functionality of traditional air filtration devices. At the same time, it ensures the structural stability and filtration reliability after installation, demonstrating significant technical advantages and wide applicability.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air filter device with easy disassembly function, comprising a frame (1), characterized in that: The back of the frame (1) is provided with an installation port for detachably installing the filter paper core (3); the front surface of the frame (1) is provided with an installation groove (105) for detachably installing the mesh frame (2); a plastic filter screen (201) is provided inside the mesh frame (2).

2. The air filtration device according to claim 1, characterized in that: The front surface of the frame (1) is provided with a guard (103), which is located on the back of the plastic filter (201) and is used to support the plastic filter (201).

3. The air filtration device according to claim 1, characterized in that: The top surface of the frame (1) is provided with at least two top blocks (102) for limiting the filter paper core (3).

4. The air filtration device according to claim 1, characterized in that: The frame (1) is provided with side limiting blocks (101) on both sides, and the side limiting blocks (101) extend to the front edge of the mounting groove (105) to limit the lateral displacement of the wire frame (2).

5. The air filtration device according to claim 4, characterized in that: The front of both sides of the wire frame (2) is provided with vertical blocks (202), which abut against the back of the side limiting block (101) to further limit the wire frame (2).

6. The air filtration device according to claim 1, characterized in that: The mounting groove (105) is provided with a middle limiting block (104) in the middle, which extends to the lower edge of the middle part of the plastic filter screen (201) to limit the longitudinal displacement of the plastic filter screen (201).

7. The air filtration device according to claim 1, characterized in that: The front surface of the wire mesh frame (2) is provided with a handle block (203) to facilitate the user to disassemble the wire mesh frame (2).

8. The air filtration device according to claim 1, characterized in that: The frame (1) has an arc-shaped structure on both sides.

9. The air filtration device according to claim 1, characterized in that: The two sides of the wire frame (2) are arc-shaped, which matches the arc-shaped sidewalls of the frame (1).

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